From time to time it is rather tough and even unachievable to quantify a changa. By way of example when preparing a changa from "copyright oil" extracted from some acacia which contains a combination of alkaloids, and harmalas in the form of caapi leaf containing an unknown volume of harmala https://changa-copyright-for-sale-italy47788.blogdosaga.com/36384331/changa-copyright-for-sale-europe-an-overview